graphql.annotations.connection.PaginatedData Maven / Gradle / Ivy
/**
* Copyright 2016 Yurii Rashkovskii
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
*/
package graphql.annotations.connection;
/**
* This class is the result of a connection. Every Graphql connection field must return this interface
*
* NOTE: this interface extends Iterable. The data is retrieved from the "iterator" function.
* Please implement the iterator with data structure that has order
*
* @param the data of which we paginated over
*/
public interface PaginatedData extends Iterable {
/**
* Whether or not this is the last page
*
* @return true if there is a next page, false otherwise
*/
boolean hasNextPage();
/**
* Whether or not this is the first page
*
* @return true if there is a previous page, false otherwise
*/
boolean hasPreviousPage();
/**
* get the encoded cursor of the entity
*
* @param entity the entity
* @return String representation of the cursor of the entity
*/
String getCursor(T entity);
}